CN216241080U - Dual-drive wind power generation billboard - Google Patents

Abstract

The utility model discloses a dual-drive wind power generation billboard, which comprises a vertically arranged tower column and a billboard component fixedly arranged around the periphery of the tower column, wherein a dual-drive wind power generation device is arranged at the upper end of the tower column, the dual-drive wind power generation device comprises a fan blade shaft component and a generator component, and the fan blade shaft component consists of an inner rotating shaft and an outer rotating shaft sleeved outside the inner rotating shaft; the generator assembly comprises a shell and a sheet type winding arranged in the shell, the sheet type winding and the shell are respectively fixed with the inner rotating shaft and the outer rotating shaft and are respectively driven by an upper fan blade assembly and a lower fan blade assembly, and the rotation direction of the lower fan blade assembly is opposite to that of the upper fan blade assembly. According to the wind driven generator, the upper fan blade component and the lower fan blade component respectively drive the shell of the generator component and the sheet type winding to rotate relatively, so that the relative rotating speed between the shell and the sheet type winding is improved, and the wind energy utilization rate is improved.

Description

Dual-drive wind power generation billboard

Technical Field

The utility model relates to the technical field of outdoor billboards, in particular to a dual-drive wind power generation billboard.

Background

The advertisement plays an important role in promoting products and improving enterprise images, and besides the media advertisement, the outdoor billboard also occupies a great share.

In order to achieve the purposes of energy conservation and environmental protection, a plurality of outdoor advertising boards adopt a wind power generation device for power supply. However, most of the existing wind power generation billboards adopt horizontal shaft type fans, and the power generation efficiency of the wind power generators is lower than that of a vertical shaft under the same wind speed condition, especially in low wind speed areas; and the vertical axis wind turbine is safer and more stable than the horizontal type wind turbine. In addition, a large number of cases at home and abroad prove that the horizontal wind driven generator does not rotate frequently in urban areas, and the problems of fan breakage, falling off and the like are frequently caused in high-wind-speed areas such as the north, the northwest and the like, and dangerous accidents such as hurting pedestrians and vehicles on the road are frequently caused.

Therefore, the Chinese patent invention CN101645216A discloses a wind power supply billboard, which adopts a vertical axis generator, and an auxiliary air duct is arranged in the generator, so that the heat dissipation problem generated when the generator operates is overcome, the demagnetization aging problem caused by overheating of a permanent magnet is solved, the power generation capacity is improved, and the service life is prolonged. However, in the above-mentioned scheme, the generator is a thrust rotary generator, and the efficiency of power generation is low.

In view of the above, there is an urgent need to improve the existing wind-powered advertising board to improve the utilization efficiency of wind energy and to reduce the manufacturing cost.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide a billboard with dual-drive wind power generation, so as to solve the problem of low utilization efficiency of wind energy of the billboard with existing wind power generation.

Therefore, the utility model provides a dual-drive wind power generation billboard, which comprises a vertically arranged tower column and a billboard component fixedly arranged around the periphery of the tower column, wherein a dual-drive wind power generation device is arranged at the upper end of the tower column, and the dual-drive wind power generation device comprises:

the fan blade shaft assembly consists of an inner rotating shaft and an outer rotating shaft sleeved outside the inner rotating shaft, and the lower ends of the inner rotating shaft and the outer rotating shaft are respectively and rotatably arranged at the upper end of the tower column through a supporting seat assembly;

the generator assembly comprises a shell and a sheet type winding arranged in the shell, wherein magnetic steel matched with the sheet type winding is arranged in the shell, the sheet type winding and the shell are respectively fixed with the inner rotating shaft and the outer rotating shaft and are respectively driven by an upper fan blade assembly and a lower fan blade assembly, and the lower fan blade assembly is arranged below the upper fan blade assembly and is opposite to the rotating direction of the upper fan blade assembly;

the advertising board assembly comprises a vertical plate and an advertising screen, the inner end of the vertical plate is fixed on the outer side face of the tower column, and the advertising screen is fixed with the vertical plate through a connecting plate.

In the above technical solution, preferably, the advertising screen is arranged in three blocks, and is arranged outside the tower column as a center to form a triangular shape, the vertical plate is arranged in three blocks, and is respectively perpendicular to the axis of the tower column and uniformly distributed along the circumference of the tower column, the inner end of the vertical plate is fixed on the outer side surface of the tower column, and the advertising screen is fixed with the vertical plate through a plurality of connecting plates.

In the above technical solution, preferably, two advertisement screens are arranged in parallel back to back, four vertical plates are arranged, the four vertical plates are respectively parallel to the advertisement screens and are located on a straight line in pairs, the inner ends of the vertical plates are fixed on the outer side surface of the tower column, and the advertisement screens are fixed with the vertical plates through a plurality of connecting plates.

In the above technical solution, preferably, an annular shoulder is provided on an outer circumferential surface of the inner rotating shaft, and the sheet winding is fixed on an end surface of the annular shoulder along a circumferential direction of the annular shoulder by vertically arranged screws;

the upper fan blade assembly is fixed with the inner rotating shaft, and the lower fan blade assembly is fixed with the shell.

In the above technical solution, preferably, a transition shaft sleeve is fixedly disposed on an outer circumferential surface of the inner rotating shaft, and the annular shaft shoulder is disposed on the outer circumferential surface of the transition shaft sleeve.

In the above technical solution, preferably, the support seat assembly includes:

the center of the base is provided with a central hole, a first bearing is arranged at the central hole, and the lower end of the inner rotating shaft is rotatably arranged on the first bearing;

and the lower end of the shaft seat is fixed on the base, and the outer rotating shaft is rotatably arranged on the shaft seat.

In the above technical solution, preferably, the support base assembly further includes an intermediate shaft and a brake device;

the middle shaft is arranged between the inner rotating shaft and the outer rotating shaft, a second bearing is arranged at the upper end of the middle shaft, the inner rotating shaft is in rotating fit with the second bearing, a middle shaft lower flange plate is arranged at the lower end of the middle shaft, a shaft seat upper flange is arranged at the upper end of the shaft seat, and the shaft seat upper flange and the middle shaft lower flange plate are oppositely buckled and fixed to form a cavity;

the brake device comprises a first brake disc and a second brake disc, the first brake disc is arranged in the cavity, and the first brake disc is fixed with the inner rotating shaft;

and a connecting rod is arranged on the lower flange of the intermediate shaft, the upper end of the connecting rod is fixedly connected with a brake caliper, the lower end of the outer rotating shaft is provided with an annular flange, and the annular flange is inserted into the brake caliper to form the second brake disc.

In the above technical solution, preferably, a third bearing is disposed at an upper end of the lower flange of the intermediate shaft, the outer rotating shaft is rotatably matched with the third bearing, a sheath extending downward is disposed on a bottom surface of the second brake disc, and the sheath is disposed outside the third bearing.

In the above technical solution, preferably, the upper fan blade assembly includes an upper inner fan blade and an upper outer fan blade disposed around the upper inner fan blade, and the upper inner fan blade and the upper outer fan blade are respectively fixed to the inner rotating shaft; go up outer fan blade includes:

the upper end and the lower end of the upper outer fan blade sleeve are respectively provided with an upper fixing piece and a lower fixing piece, and the upper outer fan blade sleeve is sleeved on the outer rotating shaft and is fixed through a radial screw;

many C shape fan blade strips set up along circumference equipartition, the upper end of C shape fan blade strip with it is fixed to go up the mounting, the lower extreme of C shape fan blade strip with the mounting is fixed down.

In the above technical solution, preferably, a slip ring device is provided above the first bearing, and the slip ring device includes:

the collecting ring is fixedly arranged on the outer circumferential surface of the inner rotating shaft;

the wiring terminal is arranged on the outer wall of the shaft seat and elastically pressed on the collecting ring;

the inner rotating shaft is in rotating fit with the fourth bearing.

According to the technical scheme, the billboard adopting double-drive wind power generation solves the problem of low utilization rate of wind energy in the prior art. Compared with the prior art, the utility model has the following beneficial effects:

the upper fan blade component and the lower fan blade component respectively drive the shell of the generator component and the sheet type winding to rotate relatively, so that the relative rotating speed between the shell and the sheet type winding is improved, and the wind energy utilization rate is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described and explained. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic view of a dual-drive wind-powered billboard embodiment 1 according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of the billboard assembly of the present invention

FIG. 4 is a schematic view of a dual-drive wind turbine generator according to the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is an enlarged view of portion B of FIG. 5;

FIG. 7 is a schematic view of an upper blade assembly of the present invention;

FIG. 8 is a schematic view of a lower fan assembly according to the present invention;

FIG. 9 is an enlarged view of portion C of FIG. 8;

FIG. 10 is a schematic view of an embodiment 3 of the dual-drive wind-powered billboard provided by the utility model.

In fig. 1 to 10, the correspondence between the components is as follows:

a tower column 100, a dual-drive wind power generation device 200 and a billboard assembly 300;

a blade shaft assembly 210, a generator assembly 220, an upper blade assembly 230, a lower blade assembly 240, a support seat assembly 250;

an inner rotating shaft 211, an outer rotating shaft 212, an annular shaft shoulder 2111, a countersunk screw 2112, a flange plate 2121 and a sheath 2122;

an upper cover 221, a lower cover 222, a sheet winding 223, magnetic steel 224, an upper bearing 225, and a lower bearing 226;

an upper inner fan blade 231, an upper outer fan blade 232 and a central sleeve 233;

a first upper outer fan blade sleeve 2321, a first lower outer fan blade sleeve 2322, a C-shaped fan blade bar 2323, an upper fixing member 2324 and a lower fixing member 2325;

a lower inner fan blade 241, a lower outer fan blade 242;

the brake device comprises a base 251, a shaft seat 252, an intermediate shaft 253, a brake device 254, a first bearing 255, a slip ring device 256, a second bearing 257, a third bearing 258 and a fourth bearing 259;

a shaft seat lower flange 2521, a shaft seat upper flange 2522, an intermediate shaft lower flange 2531, a first brake disc 2541, a second brake disc 2542, a connecting rod 2543 and a brake caliper 2544;

vertical plate 310, advertisement screen 320 and connecting plate 330.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

The realization principle of the utility model is as follows:

the upper end of the billboard tower column is provided with a dual-drive wind power generation device, the dual-drive wind power generation device comprises a fan blade shaft assembly, the fan blade shaft assembly is composed of an inner rotating shaft and an outer rotating shaft sleeved outside the inner rotating shaft, a sheet winding and a shell of the generator assembly are respectively fixed with the inner rotating shaft and the outer rotating shaft and are respectively driven by an upper fan blade assembly and a lower fan blade assembly, and the rotating directions of the lower fan blade assembly and the upper fan blade assembly are opposite.

According to the double-drive wind power generation billboard provided by the utility model, the upper fan blade component and the lower fan blade component respectively drive the shell of the generator component and the sheet type winding to rotate relatively, so that the relative rotating speed between the upper fan blade component and the lower fan blade component is improved, and the wind energy utilization rate is improved.

In order to make the technical solution and implementation of the present invention more clearly explained and illustrated, several preferred embodiments for implementing the technical solution of the present invention are described below.

It should be noted that the terms of orientation such as "inside, outside", "front, back" and "left and right" are used herein as reference objects, and it is obvious that the use of the corresponding terms of orientation does not limit the scope of protection of the present invention.

Example 1.

Referring to fig. 1 and 2, fig. 1 is a schematic view of a dual-drive wind power generation billboard according to embodiment 1 of the present invention; fig. 2 is a top view of fig. 1.

As shown in fig. 1 and 2, the dual-drive wind power generation billboard provided in embodiment 1 of the present invention includes a tower 100 vertically disposed, and a dual-drive wind power generation apparatus 200 disposed at an upper end of the tower 100, wherein a billboard assembly 300 is fixedly disposed on an outer periphery of the tower 100, and the billboard assembly 300 is located below the dual-drive wind power generation apparatus 200.

As shown in fig. 3, in the present embodiment 1, the billboard assembly 300 includes three vertical plates 310 and three billboards 320, the three billboards 320 are disposed outside the tower 100 with the tower 100 as the center, and the three billboards 320 are disposed in a triangle. The three vertical plates 310 are respectively perpendicular to the axis of the tower column 100, and are uniformly distributed on the outer side of the tower column 100 along the circumferential direction of the tower column 100, the inner end of each vertical plate 310 is fixed to the outer side of the tower column 100, and each advertisement screen 320 is connected with the corresponding vertical plate 310 through a plurality of connecting plates 330.

Referring to fig. 4 again, fig. 4 is a schematic view of a dual-drive wind power generation device according to embodiment 1.

The dual-drive wind power generation device 200 comprises a fan blade shaft assembly 210, a generator assembly 220, an upper fan blade assembly 230, a lower fan blade assembly 240 and a support seat assembly 250.

The fan blade shaft assembly 210 is disposed on the support base assembly 250, and the upper fan blade assembly 230, the generator assembly 220 and the lower fan blade assembly 240 are disposed on the fan blade shaft assembly 210 from top to bottom.

Referring to fig. 5 again, the fan shaft assembly 210 is composed of an inner rotating shaft 211 and an outer rotating shaft 212 sleeved outside the inner rotating shaft 211. The lower ends of the inner rotating shaft 211 and the outer rotating shaft 212 are respectively rotatably disposed on the supporting seat assembly 250.

The generator assembly 220 includes a housing formed by upper and lower covers 221 and 222 being combined to face each other in an up-down manner, and a sheet type winding 223 is disposed in the housing. Magnetic steels 224 are respectively arranged on the bottom surface of the upper cover 221 and the top surface of the lower cover 222, the sheet type winding 223 is arranged between the upper cover 221 and the lower cover 222, working coils of the sheet type winding 223 are respectively opposite to the magnetic steels 224, the sheet type winding 223 forms an inner rotor of the generator assembly 220, and the shell forms an outer rotor of the generator assembly 220.

The plate winding 223 is fixed with the inner rotating shaft 211, the shell is fixed with the outer rotating shaft 212, the inner rotating shaft 211 and the outer rotating shaft 212 are respectively driven to rotate coaxially through the upper fan blade assembly 230 and the lower fan blade assembly 240, the lower fan blade assembly 240 is arranged below the upper fan blade assembly 230, and the rotating directions of the lower fan blade assembly 240 and the upper fan blade assembly 230 are opposite.

The winding in the existing generator assembly is usually fixed with the rotating shaft in a pin key mode, the connection mode is low in connection strength, the winding is easy to move up and down, and the rotating speed is reduced due to friction with magnetic steel, so that the generating efficiency is influenced. In order to avoid the interference between the winding and the magnetic steel, a larger gap is reserved between the winding and the magnetic steel in the existing design, so that the volume is increased on one hand, and the utilization efficiency of magnetic lines of force is reduced on the other hand.

According to the scheme, the fixing mode of the winding is improved, so that the winding can be firmly fixed on the inner rotating shaft and cannot move up and down along the shaft, the gap between the winding and the magnetic steel is reduced, the size is further reduced, and the power generation efficiency is improved. The specific structure is shown in fig. 6:

an annular shaft shoulder 2111 is arranged on the outer circumferential surface of the inner rotating shaft 211, and the sheet type winding 223 is fixed on the end surface of the annular shaft shoulder 2111 along the circumferential direction of the annular shaft shoulder 2111 by a vertically arranged countersunk head screw 2112.

Further preferably, a transition bushing 213 is disposed on an outer circumferential surface of the inner rotary shaft 211, an annular shoulder 2111 is disposed on an outer side surface of the transition bushing 213, and the transition bushing 213 is fixed to the inner rotary shaft 211 by a radial bolt.

The inner rotary shaft 211 needs to be matched with an upper bearing 225 and a lower bearing 226 in the generator assembly and connected and fixed with the plate winding 223, and therefore, the outer circumferential surface of the inner rotary shaft 211 needs to be designed with a multi-stage complex shaft shoulder, a shaft platform and the like. In addition, the inner rotary shaft 211 has a long length and requires high machining accuracy and coaxiality, and thus, the conventional inner rotary shaft 211 has a complicated machining process and high manufacturing cost.

For this reason, the present application sets the matching structure of the inner rotating shaft 211 and the upper bearing 225 and the lower bearing 226 in the generator assembly 220, and the connection structure with the sheet type winding 223 on the transition shaft sleeve 213, and the transition shaft sleeve 213 is fixed on the inner rotating shaft 211, because the length of the transition shaft sleeve 213 is short, the processing is convenient, and the processing precision is easily ensured, therefore, the processing technology of the inner rotating shaft is simplified, and the manufacturing cost of the inner rotating shaft 211 is reduced.

The upper end of the outer shaft 212 is provided with a flange 2121, which is fixed to the lower end surface of the lower cover 222 of the generator assembly 220 through a fastening bolt, so as to drive the housing of the generator assembly 220 to rotate.

As shown in fig. 7, the upper blade assembly 230 includes an upper inner blade 231 and an upper outer blade 232 disposed around the upper inner blade 231, and both the upper inner blade 231 and the upper outer blade 232 are fixed to the inner rotary shaft 211.

Wherein, go up interior fan blade 231 and be dryer formula structure, constitute by the polylith arc that arranges along circumference, can be single-layer construction, also can divide into upper and lower two-layer design, go up the central sleeve 233 of interior fan blade 231 and pass through radial bolt and internal pivot 211 fixedly.

The upper outer fan blade 232 comprises a first upper outer fan blade sleeve 2321, a first lower outer fan blade sleeve 2322 and a plurality of C-shaped fan blade bars 2323 which are uniformly distributed along the circumferential direction, and the structure of the C-shaped fan blade bars 2323 is manufactured by adopting the prior art.

An upper fixing member 2324 is arranged at the upper end of the first upper outer fan blade sleeve 2321, a lower fixing member 2325 is arranged at the lower end of the first lower outer fan blade sleeve 2322, the upper end of the C-shaped fan blade bar 2323 is fixed with the upper fixing member 2324, and the lower end of the C-shaped fan blade bar 2323 is fixed with the lower fixing member 2325. The upper fixing member 2324 and the lower fixing member 2325 are fixed to the inner rotary shaft 211 by radial bolts, respectively.

As shown in fig. 8, the lower blade assembly 240 includes a lower inner blade 241 and a lower outer blade 242 disposed around the lower inner blade 241, and both the lower inner blade 241 and the lower outer blade 242 are fixed to the outer shaft 212.

The lower inner blades 241 have the same structure as the upper inner blades 231, and are fixed to the outer circumferential surface of the outer shaft 212 by radial bolts.

As shown in fig. 2, the lower outer blade 242 includes a plurality of spindle blades uniformly distributed along the circumferential direction, the spindle blades are fixed to the outer shaft 212 through a connection system, and the structure and connection mode of the lower outer blade 242 are implemented by the prior art.

In the utility model, the upper fan blade assembly and the lower fan blade assembly can be respectively combined by wind boxes with different structural forms. For example:

the upper fan blade assembly adopts a vortex air box, and the lower fan blade assembly also adopts a vortex air box.

The upper fan blade component adopts a vortex air box, and the lower fan blade component adopts a vertical air box.

The upper fan blade component adopts an S-shaped air box, and the lower fan blade component also adopts an S-shaped air box.

The upper fan blade component adopts an S-shaped air box, and the lower fan blade component adopts a vertical air box.

The upper fan blade component adopts an S-shaped air box, and the lower fan blade component adopts a vortex air box.

The upper fan blade component adopts a vertical bellows, and the lower fan blade component adopts an S-shaped bellows.

The upper fan blade component adopts a vertical bellows, and the lower fan blade component adopts a vortex bellows and the like.

Example 2.

The solution provided in embodiment 2 of the present invention is a further improvement made on the basis of embodiment 1, and specifically refines the specific structure of the supporting seat assembly 250, so as to solve the problems of flexible rotation and braking between the inner rotating shaft 211 and the outer rotating shaft 212.

As shown in fig. 5 and 8, the support seat assembly 250 includes a base 251, a shaft seat 252, an intermediate shaft 253, and a brake 254.

The center of the base 251 has a center hole, a first bearing 255 is provided at the center hole, and the lower end of the inner rotary shaft 211 is rotatably provided on the first bearing 255.

The lower end of shaft seat 252 is provided with a shaft seat lower flange 2521, and shaft seat lower flange 2521 is fixed on base 251. A collecting ring device 256 is arranged above the first bearing 255, the collecting ring device 256 includes a collecting ring and a connecting terminal, the collecting ring is fixedly arranged on the outer circumferential surface of the inner rotating shaft 211, and the connecting terminal is arranged on the outer wall of the shaft seat 252 and elastically pressed on the collecting ring.

An upper shaft seat flange 2522 is arranged at the upper end of the shaft seat 252, and the upper shaft seat flange 2522 is in rotating fit with the second bearing 257.

The intermediate shaft 253 is disposed between the inner rotating shaft 211 and the outer rotating shaft 212, a second bearing 257 is disposed at the top end of the intermediate shaft 253, and the inner rotating shaft 211 is rotatably fitted with the second bearing 257. The lower end of the intermediate shaft 253 is provided with an intermediate shaft lower flange 2531, and the shaft seat upper flange 2522 and the intermediate shaft lower flange 2531 are relatively buckled and fixed to form a cavity.

The brake device 254 includes a first brake disc 2541 and a second brake disc 2542.

The first brake disc 2541 is disposed in a cavity formed by the shaft seat upper flange 2522 and the intermediate shaft lower flange 2531, and the first brake disc 2541 is fixed to the inner rotating shaft 211.

A connecting rod 2543 is arranged on the top surface of the lower flange plate 2531 of the intermediate shaft, the upper end of the connecting rod 2543 is fixedly connected with a brake caliper 2544, the lower end of the outer rotating shaft 212 is provided with an annular flange, and the annular flange is inserted into the brake caliper 2544 to form a second brake disc 2542.

The upper end of the lower flange plate 2531 of the intermediate shaft is provided with a third bearing 258, the lower end of the outer rotating shaft 212 is in rotating fit with the third bearing 258, the bottom surface of the second brake disc 2542 is provided with a sheath 2122 which extends downwards, and the sheath 2122 is arranged on the outer side of the third bearing 258, so that dust and sundries are prevented from entering the third bearing 258, and the service life of the third bearing 258 is prolonged.

A fourth bearing 259 is disposed above the slip ring device 256, and the inner rotating shaft 211 is rotatably engaged with the fourth bearing 259.

Example 3.

As shown in fig. 10, a dual-drive wind power generation billboard provided by embodiment 3 of the present invention is different from embodiment 1 in the arrangement of the advertisement screens in the billboard assembly.

In this embodiment 3, the advertisement screens 320 are arranged in 2 pieces in total, and the 2 pieces of advertisement screens 320 are arranged back to back and parallel to each other. The vertical plates 310 are totally provided with 4 vertical plates 310, the 4 vertical plates 310 are respectively parallel to the advertisement screens 320 and are arranged on two sides of the tower column, every two of the four vertical plates 310 are positioned on a straight line, the inner end of the first vertical plate 310 is fixed with the outer side faces of the tower column, and the first advertisement screen 320 is fixed with the vertical plates 310 through the connecting plates 330.

By combining the description of the specific embodiment, compared with the prior art, the dual-drive wind power generation billboard provided by the utility model has the following advantages:

firstly, the upper fan blade component and the lower fan blade component respectively drive the shell of the generator component and the sheet type winding to rotate relatively, so that the relative rotating speed between the shell and the sheet type winding is improved, and the wind energy utilization rate is improved.

And secondly, an annular shaft shoulder is arranged on the outer circumferential surface of the inner rotating shaft, the shaft hole of the sheet type winding is a step hole, the sheet type winding is fixed on the end surface of the annular shaft shoulder along the circumferential direction of the annular shaft shoulder through a countersunk head screw, the winding can be firmly fixed on the inner rotating shaft and cannot move along the shaft, the gap between the winding and the magnetic steel is small, the size is reduced, and the utilization efficiency of cutting magnetic lines is improved.

And thirdly, the outer rotating shaft and the inner rotating shaft are arranged at the top end of the tower column through the rotating device, so that the relative rotation of the outer rotating shaft and the inner rotating shaft is realized, and the rotation is flexible.

Fourthly, the two advertisement screens are arranged in a whole, the two advertisement screens are arranged in parallel back to back, and one advertisement board realizes the functions of the two advertisement screens, improves the utilization rate of the advertisement screens and improves the benefits.

Fifthly, three advertisement screens are arranged to form a triangular shape, and one advertisement board realizes the functions of the three advertisement screens, so that the utilization rate of the advertisement screens is further improved, and the benefit is improved.

Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.

Claims (10)

1. The utility model provides a dual drive wind power generation's bill-board, includes the pylon of vertical setting and centers on the bill-board subassembly of the fixed setting in periphery of pylon, its characterized in that, the upper end of pylon is equipped with dual drive wind power generation set, dual drive wind power generation set includes:

the fan blade shaft assembly consists of an inner rotating shaft and an outer rotating shaft sleeved outside the inner rotating shaft, and the lower ends of the inner rotating shaft and the outer rotating shaft are respectively and rotatably arranged at the upper end of the tower column through a supporting seat assembly;

the generator assembly comprises a shell and a sheet type winding arranged in the shell, wherein magnetic steel matched with the sheet type winding is arranged in the shell, the sheet type winding and the shell are respectively fixed with the inner rotating shaft and the outer rotating shaft and are respectively driven by an upper fan blade assembly and a lower fan blade assembly, and the lower fan blade assembly is arranged below the upper fan blade assembly and is opposite to the rotating direction of the upper fan blade assembly;

the advertising board assembly comprises a vertical plate and an advertising screen, the inner end of the vertical plate is fixed on the outer side face of the tower column, and the advertising screen is fixed with the vertical plate through a connecting plate.

2. A dual-drive wind power generation billboard according to claim 1, wherein the billboard is provided with three advertising screens, the advertising screens are arranged outside the tower column with the tower column as a center to form a triangular shape, the three vertical plates are arranged, the three vertical plates are respectively perpendicular to the axis of the tower column and are uniformly distributed along the circumference of the tower column, the inner ends of the vertical plates are fixed on the outer side surface of the tower column, and the advertising screens are fixed with the vertical plates through a plurality of connecting plates.

3. A dual-drive wind power generation billboard according to claim 1, wherein two advertisement screens are arranged, the two advertisement screens are arranged in parallel back to back, the four vertical plates are arranged in parallel, the four vertical plates are respectively parallel to the advertisement screens and arranged at two sides of the tower column, the four vertical plates are located on a straight line two by two, the inner ends of the vertical plates are fixed on the outer side of the tower column, and the advertisement screens are fixed with the vertical plates through a plurality of connecting plates.

4. The dual-drive wind power generation billboard according to claim 1, wherein an annular shoulder is provided on an outer circumferential surface of the inner rotating shaft, and the sheet type winding is fixed on an end surface of the annular shoulder along a circumferential direction of the annular shoulder by vertically arranged screws;

the upper fan blade assembly is fixed with the inner rotating shaft, and the lower fan blade assembly is fixed with the shell.

5. The dual-drive wind power generation billboard according to claim 4, wherein a transition shaft sleeve is fixedly arranged on the outer circumferential surface of the inner rotating shaft, and the annular shaft shoulder is arranged on the outer circumferential surface of the transition shaft sleeve.

6. The dual-drive wind power generation billboard of claim 5, wherein the supporting seat assembly comprises:

the center of the base is provided with a central hole, a first bearing is arranged at the central hole, and the lower end of the inner rotating shaft is rotatably arranged on the first bearing;

and the lower end of the shaft seat is fixed on the base, and the outer rotating shaft is rotatably arranged on the shaft seat.

7. The dual-drive wind power generation billboard of claim 6, wherein the supporting base assembly further comprises an intermediate shaft and a brake device;

the middle shaft is arranged between the inner rotating shaft and the outer rotating shaft, a second bearing is arranged at the upper end of the middle shaft, the inner rotating shaft is in rotating fit with the second bearing, a middle shaft lower flange plate is arranged at the lower end of the middle shaft, a shaft seat upper flange is arranged at the upper end of the shaft seat, and the shaft seat upper flange and the middle shaft lower flange plate are oppositely buckled and fixed to form a cavity;

the brake device comprises a first brake disc and a second brake disc, the first brake disc is arranged in the cavity, and the first brake disc is fixed with the inner rotating shaft;

and a connecting rod is arranged on the lower flange of the intermediate shaft, the upper end of the connecting rod is fixedly connected with a brake caliper, the lower end of the outer rotating shaft is provided with an annular flange, and the annular flange is inserted into the brake caliper to form the second brake disc.

8. The dual-drive wind power generation billboard according to claim 7, wherein a third bearing is arranged at the upper end of the lower flange of the intermediate shaft, the outer rotating shaft is rotatably matched with the third bearing, a sheath extending downwards is arranged on the bottom surface of the second brake disc, and the sheath is arranged outside the third bearing.

9. A dual-drive wind power generation billboard according to claim 1, wherein said upper fan assembly comprises an upper inner fan and an upper outer fan arranged around said upper inner fan, said upper inner fan and said upper outer fan are fixed to said inner rotating shaft, respectively, said upper outer fan comprises:

the upper end and the lower end of the upper outer fan blade sleeve are respectively provided with an upper fixing piece and a lower fixing piece, and the upper outer fan blade sleeve is sleeved on the outer rotating shaft and is fixed through a radial screw;

many C shape fan blade strips set up along circumference equipartition, the upper end of C shape fan blade strip with it is fixed to go up the mounting, the lower extreme of C shape fan blade strip with the mounting is fixed down.

10. The dual-drive wind power generation billboard according to claim 6, wherein a slip ring device is arranged above the first bearing, and the slip ring device comprises:

the collecting ring is fixedly arranged on the outer circumferential surface of the inner rotating shaft;

the wiring terminal is arranged on the outer wall of the shaft seat and elastically pressed on the collecting ring;

and a fourth bearing is arranged above the collecting ring device, and the inner rotating shaft is in rotating fit with the fourth bearing.

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